The A/C in my car gets hot/cold, but it doesn't blow... What is that? on 2004 Chevrolet Impala

Sometimes when I hit a bump or a door is slammed, the blower kicks in and blows really hard, but most of the time it doesn't blow.

Asked by for the 2004 Chevrolet Impala
bad blower motor resistor and pigtail. there is an updated pigtail avail at dealer
About how much would getting those replaced cost?
2 more answers
Sounds like a blower motor, brushes going bad.
Id say u gotta blowing problem , check the connector on the blower, turn it
On and wiggle it , i think its a loose connection....